Our purifier utilizes pelletized purifying material coated with a thin oxide layer which when heated, chemically traps gas stream impurities. Through this process, gas stream impurities in zero grade helium (£ 10 ppm or 99.999%) are reduced to the ppb or Grade 7 (100 ppb or 99.99999%) level. Super purified helium is necessary for many of today's GC applications.
